Hugger...hug this for a test....
and to your benefit, I am getting pretty old.[70]
You look at my junk line-up of Mini-14's
and you pick which one.
We measure off 200yds, you say go, I shoot at you.
Willing to take that gamble, or you say it would
just be a fluke...if I hit you ????
No malice intended.....but what 'hands-on'
experience do you 'personally' have ?
[In one word...PRICE.---GunHugger]
In one word....? Experience ? Hearsay ?
Overheard ? Guessing ? Military ? Forums ?

All my AR's kick the Mini-14's ass......
They are constantly accurate beyond 1000 yds,
and the mags only cost me $5......
I get so sick of the 'expertise'.......
Guilty, thread drift to the max !
[My apologies for being a senile old fart...
not my fault....old asphalt !]

After all is said and done about this subject, I have a question; Why? Why would a company manufacture an aftermarket magazine for a particular firearm that doesn't work? Surely some R&D went into producing these mags, why wouldn't they have realized there was a problem? Has anyone bothered to contact these companies to let them know their product doesn't work worth a damn?

I was a QC inspector for several mold manufacturers and on occasion we had to duplicate other products. With modern CNC processes exact reproductions of existing parts is easily achievable. So why would a company like Promag produce a magazine for a particular firearm that had a functional detail that didn't match the original? It just doesn't make sense to me.

Of course we know that all brands of the same product don't always perform the same, but it has been my experience that this usually has to do with parts failure due to materials used. Companies try to maximize profits by making parts of cheaper materials. These materials may fail during use and malfunction, but that doesn't appear to be the case in this instance, rather this seems to be an intentional variation of a critical design feature..

I apologize for going off on a tangent but thing like this really get my panties in a bunch.

Is a package of repair parts for a magazine a magazine under the law? I have no idea how the CA seller got the parts to CA but suppose someone outside CA disassembled a bunch of magazines, threw them in a box, and sent them as repair parts. He could put some parts in one box and some others in another box so that both shipments had to be combined to be complete magazines. Is that a violation of the law if the seller never assembles them as a magazine? It turns out it is not a violation to posses 10+ round magazines but only to sell them. So the buyer does the re-assembly. Did he break the law?

What I saw was that the mags were disassembled and put back into the original packaging and re-identifed as a repair kit. Is that illegal? I don't even know if they were shipped from out of state or just old stock the seller happen to have? The sellers were the magazine sellers that usually have huge stocks of magazines on their tables.

The whole 10 round magazine law is stupid, passed by anti-gunners who are eating away at our gun rights in California one bite at a time just like the way you eat an Elephant. The bad guys will get large capacity magazines whether there is a law or not. Meantime the honest gun owners suffer and the anti-gunners get another bite out of our gun rights. DUMB LAW. But this is typical of the CA liberal Legislature. I applaud anyone who finds a legal loop hole in any of these anti-gun laws. They have successfully and legally bypassed the CA Assault Weapons Ban with bullet buttons and guns configured around the law. These AR's and other semi-auto gun are the hottest selling guns in CA today and they are legal. Manufacturers even make "CA Legal" version of these guns. Screw the anti-gunners.

Might the problem not be the magazine? Picture #44 seems to show the bullet nose jammed against a sharp edge of the chamber. If that is the case, it would seem to me that the problem would be there rather than with the magazine. True, another mag might point the bullet nose closer to the center of the chamber, but the round should feed from that position.

the round sits right against the edge of the bore. its as if the bore was chamfered or rounded off, every round would go in perfectly, buuuut i aint about to do that cause that could have some dire consequences.

? I have a Mini -14 and several older steel mags, 20 and 30, and just recently bought two of the 30 ProMag polys, NO PROBLEMS! Yes they are slighly loose, but so are the steel ones of long ago.
And no, you shouldn't hold on to them when firing the gun, they're mags, not handles.
I read the HK post here, I have an aluminum 30 rd one that I had to work on when I got it, seems the follower had burrs that caused jamming.